Random DH questions from a lowly Muggle

[melrosedarjeeling]

No: HPFGUIDX 173082

> Tim replies:
>
> Actually, thinking about it a few days later, it does make sense.
> Harry did die in that chapter.  Because V was still alive, and had
> Harry's blood, Harry could hold onto life, like V did when Harry was
> a baby (he had most of the Horocuxes already made, so he could hang
> onto life).

My question is:  if the protection of Lily's blood "expired" when
Harry turned 17, why would Lily/Harry's blood in Voldemort continue
to provide protection after the expiration date?

melrosedarjeeling